dart-sdk/tests/standalone/causal_async_stack_test.dart
Robert Nystrom 35da19ac07 Migrate standalone_2 to null safety.
Change-Id: I0e97add738bc79314a210cf137525b7391467fc2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152595
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
2020-06-26 19:17:50 +00:00

36 lines
883 B
Dart

// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// VMOptions=--causal_async_stacks --no-lazy-async-stacks
// VMOptions=--no-causal_async_stacks --lazy-async-stacks
import "package:expect/expect.dart";
noop() async => Future.value(null);
baz() async {
// Throw exception after the first continuation, when there is no
// original stack trace.
await noop();
throw "Bad!";
}
bar() async {
await baz();
}
foo() async {
await bar();
}
main() async {
try {
await foo();
} catch (e, st) {
Expect.isTrue(st.toString().contains("baz"));
Expect.isTrue(st.toString().contains("bar"));
Expect.isTrue(st.toString().contains("foo"));
Expect.isTrue(st.toString().contains("main"));
}
}